Perl long data type

Question

I am writing an app in Perl that requires long data type instead of integers. How can I achieve this. For example;

my $num = sprintf('%ld', 27823221234);

print $num;

The output is not a long, but an integer.

Answer 1

Your options are:

• use a perl compiled for 64 bits
• use Math::Int64
• use Math::BigInt

update: ah, you can also use floats instead of integers:

printf("%.0f", 2**50)

IIRC, on most current architectures, floats can represent integers up to 2**54-1 precisely.